Turbulence

Phenomenon

Definition

Turbulence is a flow regime characterized by chaotic changes in pressure and flow velocity. It contrasts with laminar flow and features irregular, three-dimensional, time-dependent eddies.

Key Features

  • Diffusivity: Enhanced mixing of momentum, heat, and mass.
  • Dissipation: Kinetic energy is converted to internal energy at small scales.
  • High Reynolds Number: Occurs when inertial forces dominate viscous forces.

Relationships